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Cells and Heredity
Vocab for Chapter 4
Term | Definition |
---|---|
multiple alleles | Are three or more genes that code for a single trait. |
sex chromosomes | Are one of the 23 pairs of chromosomes in each body cell. |
sex-liked genes | Are genes on the X and Y chromosomes. |
carrier | Is a person who has one recessive allele for a trait and one dominant allele. |
genetic disorder | Is an abnormal condition that a person inherits through genes or chromosomes. |
pedigree | Is a chart or "family tree" that tracks which members of a family have a particular trait. |
karyotype | Is a picture of all the chromosomes in a cell. |
selective breeding | Is the process of selecting organisms with a desired traits to be parents of the next generation. |
inbreeding | Is the technique that involves crossing two individuals that have similar characteristics. |
hybridization | Is when breeders cross two genetically different individuals. |
clone | Is an organism that has exactly the same genes as the organism form which it was produced from. |
genetic engineering | Is the process when genes from one organism are transferred into the DNA of another organism. |
gene therapy | This is the process that involves inserting copies of a gene directly into a person's cells. |
genome | Is all the DNA in one cell of an organism. |